Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Summer Faith Johnson , FNP-C

Nurse Practitioner โ€ข Flagstaff, AZ

Active NPI 1235830068 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

2000 S Thompson St
Flagstaff, AZ 860018759

Call 9282266400 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2000 S Thompson St

Flagstaff, AZ 860018759

Telephone 9282266400
Fax 9282266410
Organization at the Same NPPES Address or Phone
Mountain Heart Cath Lab Facility NPI 1194988824

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Flagstaff, AZ. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Northern Arizona Healthcare Corporation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2023

Medicare patients

164 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $23,577 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $17,665 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

1,141 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$139,969 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $413.84 across 17 records.

By nature of payment

  • Food and Beverage: $413.84 across 17 records.

Reporting-company totals (3 largest of 9)

  • ZOLL Services LLC (A/K/A ZOLL LifeCor Corp): $145.51 across 3 records.
  • Novartis Pharmaceuticals Corporation: $64.46 across 3 records.
  • Janssen Pharmaceuticals, Inc: $60.34 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

3 years (graduated 2023)

CMS Doctors and Clinicians data list 2023 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2023

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Summer Johnson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Summer Johnson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Flagstaff and Arizona

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Nurse Practitioner in Flagstaff, AZ (2024, 17 clinicians with data). Median for this group: 421. Middle half: 153 to 585.

Close to the middle for clinicians listed under Nurse Practitioner in Arizona (2024, 618 clinicians with data). Median for this group: 304. Middle half: 114 to 768.

Medicare-allowed amount

A lower Medicare-allowed amount than 60% of clinicians listed under Nurse Practitioner in Flagstaff, AZ (2024, 17 clinicians with data). Median for this group: $32,571. Middle half: $14,179 to $52,008.

Close to the middle for clinicians listed under Nurse Practitioner in Arizona (2024, 618 clinicians with data). Median for this group: $24,217. Middle half: $9,430 to $60,508.

Paid by Medicare

A lower Medicare payment amount than 60% of clinicians listed under Nurse Practitioner in Flagstaff, AZ (2024, 17 clinicians with data). Median for this group: $22,331. Middle half: $9,979 to $37,083.

Close to the middle for clinicians listed under Nurse Practitioner in Arizona (2024, 618 clinicians with data). Median for this group: $17,824. Middle half: $6,512 to $45,984.

Medicare Part D prescriptions

More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Flagstaff, AZ (2024, 20 clinicians with data). Median for this group: 294. Middle half: 66 to 749.

Close to the middle for clinicians listed under Nurse Practitioner in Arizona (2024, 705 clinicians with data). Median for this group: 368. Middle half: 91 to 1,188.

Part D drug cost

A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Flagstaff, AZ (2024, 20 clinicians with data). Median for this group: $17,855. Middle half: $2,234 to $208,313.

A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Arizona (2024, 705 clinicians with data). Median for this group: $19,716. Middle half: $1,586 to $167,412.

29 active clinicians are listed under Nurse Practitioner with a practice address in Flagstaff, AZ (1,430 in Arizona).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Flagstaff

41.4% of these 29 clinicians have the CMS telehealth indicator.

72.4% of these 29 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 17 records totaling $413.84.

Manufacturer Payment Nature Product Type Amount ($)
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
Food and Beverage
Cash or cash equivalent
LifeVest General $95.04
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
Food and Beverage
Cash or cash equivalent
LifeVest General $33.35
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
OPSUMIT General $32.68
Dexcom, Inc.
Food and Beverage
In-kind items and services
Dexcom G6 Transmitter General $27.96
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
OPSYNVI General $27.66
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $27.29
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $23.38
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $21.01
Pfizer Inc.
Food and Beverage
In-kind items and services
VYNDAQEL General $20.19
Pfizer Inc.
Food and Beverage
In-kind items and services
VYNDAQEL General $19.60
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
Food and Beverage
Cash or cash equivalent
LifeVest General $17.12
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
ELIQUIS General $17.03
Amgen Inc.
Food and Beverage
In-kind items and services
REPATHA General $15.12
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $13.79
Amgen Inc.
Food and Beverage
In-kind items and services
REPATHA General $13.70
VivaQuant Inc, dba Rhythm Express
Food and Beverage
Cash or cash equivalent
RHYTHM EXPRESS General $8.50
VivaQuant Inc, dba Rhythm Express
Food and Beverage
Cash or cash equivalent
RHYTHM EXPRESS General $0.42

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
202 148 $211.00 $103.46
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
13 13 $47.00 $11.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
13 12 $287.00 $148.34
99441 Telephone medical discussion with physician, 5-10 minutes
13 12 $83.00 $46.20

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Ezetimibe Ezetimibe 55 4,758 $1,468.44 24
Atorvastatin Calcium Atorvastatin Calcium 43 3,450 $437.20 22
Vascepa Icosapent Ethyl 42 3,180 $36,602.32 24
Rosuvastatin Calcium Rosuvastatin Calcium 39 2,790 $325.59 15
Entresto Sacubitril/Valsartan 38 1,725 $38,478.91 12
Lisinopril Lisinopril 34 2,937 $268.54 16
Metoprolol Succinate Metoprolol Succinate 30 2,640 $420.02 18
Amlodipine Besylate Amlodipine Besylate 28 2,340 $199.00 13
Losartan Potassium Losartan Potassium 27 2,090 $264.08 15
Icosapent Ethyl Icosapent Ethyl 25 1,710 $8,845.76 โ€”
Pravastatin Sodium Pravastatin Sodium 24 2,100 $177.76 12
Eliquis Apixaban 23 1,890 $36,321.72 11
Clopidogrel Clopidogrel Bisulfate 13 570 $40.92 โ€”
Hydrochlorothiazide Hydrochlorothiazide 13 1,170 $53.14 โ€”
Repatha Syringe Evolocumab 13 868 $16,065.69 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-03-07
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES AZ 294648

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Registered Nurse - Flight

NUCC Taxonomy Code: 163WF0300X

License # reported to NPPES AZ 186259
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Arizona Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20230915001861

Enrollment State Jurisdiction

AZ

PECOS Control ID

4385008804

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Northern Arizona Healthcare Corporation

2000 S Thompson St, Flagstaff, AZ 860018759

Phone: 9282266400

Northern Arizona Healthcare Corporation

7810 N Us Hwy 89, Flagstaff, AZ 860046255

Phone: 9285228375

Northern Arizona Healthcare Corporation

269 S Candy Ln, Cottonwood, AZ 863264158

Phone: 9286341331

Northern Arizona Healthcare Corporation

1895 N Jasper Dr, Flagstaff, AZ 860011632

Northern Arizona Healthcare Corporation

1215 N Beaver St, Flagstaff, AZ 860013126

Phone: 9287732249

Northern Arizona Healthcare Corporation

269 S Candy Ln, Cottonwood, AZ 863264158

Phone: 9286395588

Secondary Practice Locations

1116 E Route 66 Ste A-2

Flagstaff, AZ 860014706

Phone: 9287079455

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

29 listed
Dr. Andrew Atiemo , MD

Internal Medicine - Interventional Cardiology

NPI 1285678748

Doctor of Medicine (M.D.)

Dr. Bryan Barker , DPT

Physical Therapist

NPI 1942615778

Doctor of Physical Therapy

Martha Barlow , CNM

Nurse Practitioner

NPI 1770846842

Certified Nurse Midwife

Norria Brice , ACNP-BC

Nurse Practitioner - Acute Care

NPI 1407131758

ACNPBC

Dr. Barbara Burggraaff , MD

Otolaryngology - Sleep Medicine

NPI 1730112442

Doctor of Medicine (M.D.)

Dr. Renzo Cataldo , MD

Internal Medicine - Clinical Cardiac Electrophysiology

NPI 1174526677

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

12 Historical Events
๐Ÿ“
Updated Business Mailing Address March 07, 2025

Registered at 2000 S THOMPSON ST, FLAGSTAFF, AZ 860018759 (Tel: 9286994495)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 07, 2025

Registered Nurse (license number reported to NPPES: AZ 186259)

๐Ÿ“
Updated Practice Location March 18, 2024

Registered at 2000 S THOMPSON ST, FLAGSTAFF, AZ 860018759 (Tel: 9282266400)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 18, 2024

Registered Nurse (license number reported to NPPES: AZ RN186259)

๐Ÿ‘ค
Provider Name / Credentials Updated August 18, 2023

Recorded as SUMMER JOHNSON, FNP-C

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 20, 2023

Nurse Practitioner (license number reported to NPPES: AZ 294648)

โœ…
NPI Profile Active March 17, 2023

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) March 17, 2023

Registered at 2951 S PEPITA DR, FLAGSTAFF, AZ 860019163 (Tel: 9286994495)

๐Ÿ“
Business Mailing Address (Initial Record) March 17, 2023

Registered at 2951 S PEPITA DR, FLAGSTAFF, AZ 860019163 (Tel: 9286994495)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) March 17, 2023

Recorded as SUMMER JOHNSON, FNP

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2023

Registered Nurse (license number reported to NPPES: AZ RN186259)

๐ŸŸข
Initial NPI Registration & Enumeration March 17, 2023

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1235830068
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 17, 2023
Last Update: March 07, 2025
Sole Proprietor: No

Other Nurse Practitioners in Flagstaff

All Nurse Practitioners in Flagstaff

Mailing Address

2000 S Thompson St

Flagstaff, AZ 860018759

Phone: 9286994495

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.